Hi Anita
Sending some empathy and support.
You may feel isolated but in reaching out, you’re not alone. We hear you.
You said he’s your ex husband, and you’re companions, so my understanding is that you’re feeling more compelled to care (‘I still have to go on caring’) & you’re not in a loving caring relationship with him. In addition, you’re also providing finance and accommodation because you’re still working.
In my humble opinion, every person has the right to choose whether they wish to be a carer or not, each person’s situation is unique and it’s a person’s right to choose. Your relationship has changed and even if he has health issues, and perhaps a complicated past with you, YOU still have this choice.
I’m relieved to hear you’re connected to the local mental health team and that they, as well as your GP are aware of the situation.
As your health is not good and you have some potentially big changes ahead if you choose to stop caring for your ex-husband, perhaps the best first small step is to organise a few days of respite, away from him. The distance and rest can provide you with the space you need to answer the bigger and more permanent questions, as @bowlingbun said, and to prepare for an assessment as @thara_2207 suggested.
Trying to deal with everything and a big change in one go could be too much to ask of yourself right now. So perhaps, as you’re in desperate need to ‘pick up a case and go’ get your GP, mental health team & social services focused on this first?
I’m much less experienced with regard to social services and mental health teams These days the quality and availability of services and support vary widely.
One thought - as he is your ex husband and has various health issues, with my limited understanding I would think that he may be a ‘higher priority’ for social service if he is treated as separate from you. Other people can correct me on that. @Charlesh47 ?? @bowlingbun ?? I’m thinking if you are not financially supporting or accommodating him the need for social services to find appropriate options would increase.
Lean on your GP & the mental health team to organise a break is my main thought. With your diagnosis & exhaustion, I’m sure that trying to see the woods for the trees and a way forward is daunting.
Perhaps calling and talking to someone e.g. MIND organisation or the CarersUK near you could help: Support where you live | Carers UK
Take care, I hope you can make some positive steps forward tomorrow, for your own health & well-being.